From 39e1c59989ec8c4b1b1f51280a4a1b0ba89a3155 Mon Sep 17 00:00:00 2001
From: vrld <vrld@vrld.org>
Date: Wed, 7 Mar 2012 23:33:27 +0100
Subject: [PATCH] Actually copy existing buffer data to temporary memory region
 in VBO::map().

---
 src/modules/graphics/opengl/VertexBuffer.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/modules/graphics/opengl/VertexBuffer.cpp b/src/modules/graphics/opengl/VertexBuffer.cpp
index 1bd4a73cd..98b74273a 100644
--- a/src/modules/graphics/opengl/VertexBuffer.cpp
+++ b/src/modules/graphics/opengl/VertexBuffer.cpp
@@ -131,13 +131,14 @@ namespace opengl
 		mapped = malloc(getSize());
 		if (!mapped)
 			throw love::Exception("Out of memory (oh the humanity!)");
+		glGetBufferSubDataARB(getTarget(), 0, getSize(), mapped);
 
 		return mapped;
 	}
 
 	void VBO::unmap()
 	{
-		glBufferSubDataARB(getTarget(), 0, getSize(), (void*)mapped);
+		glBufferSubDataARB(getTarget(), 0, getSize(), mapped);
 		free(mapped);
 		mapped = 0;
 	}